Arm splint



Aug 23 1927 J. RQ SIEBRANDT ARM sPLNT' Fied June 5o. 1924 s sheets-sheer 1 Ime/fior;

Aug- '23'f 1927 1. R. SIEBRANDT ARM sPLINT Y filed June so. 1924 s sheets-sheet 3 v p. v I 2 Ilma/fidi; y @mi Patented ug. 23, 1927.

UNITED STATES JOHN R. SIEBRANDT, OF KANSAS CITY, MISSOURI.

ARM 'SPLINT.

Application iled June 30,

This inventionrelates ,to arm splints and .my object is to produce a splint which is universal in its adjustments to .accommodate all possible positions of the arm including 5 the position of the .upper arm usingits longitudinal aXis as the center .of rotation andv is suited for use with either `the rightor lett arm.

Another object is to provide means whereo by extension may be secured regardless .ot the position ol'the arm. f A further object is to produce an extension which is constructed practically entirely of aluminum and, therefore, `does not in.- terferewith the use of the X-ray..v v-

A' still further object is to produce a splint of the general characteroutlined which is mechanically simple 'and is of strong and durable construct-ion and in order that it may be fully understood, reference is to be had tothe accompanying drawing, in which Figure 1 is a view showing the use of the splint with the forearmextending vertically upward and the upper arm projecting horizontally outward to the side.

Figure 2 is a View similar to Figure 1, but with the forearm in the same horizontal. plane as the upperarm and forming a right 39 angle therewith, a plaster cast on the -body of the wearer Aand a dierent type of hand Figure 3 illustrates the forearm in supinated position with the same type of hand grip alsillustrated in Figure 1.

" F igure'll illustrates the forearm and'traction plate member for use in the extension ofthe upper arm when a fracture occurs in close proximity to the elbow and it is impossible or undesirable to employ adhesive traction means. v

Figure 5 is a central section taken through the splint-as it appears inl Figure 1. Figurei 6 is an enlarged `section on Vthe line Vl-VI ot Figure 5, Y

`Figure 7 is an enlarged section on the line VII-Vll of Figure 5. n

Figure 8 is aV centr-al section taken through the .hand Vgrip employed in varying the angular position of the wrist. f

Figure) is a bottom plan of the attachment shown in Figure 8L In the said drawing, Vwhere like Yreference characters identify corresponding parts in lall of the ligui'es, 1f indicates a body tubular member pivotally mountedat -one st tsends 1924. Serial No. 723,174.

as at and is formed with .apair of .clamping ears y6 engaged by .a clamping bolt 7,- whenehy said member may .be xclamped fin' anydesired position of vertical/orrotary adjustment relative to the tubel. `The body of the patient is encircled byra second' belt 8 provided with an internal stift'ening mem ber 9, andl in order to adj-ustably secure the upper or telescopic Vtube 5 in position, said belt is provided with' a split collar l10 encircling the tube 5, and adapted to be clamped in any `desired position of adjustment by means of a. clamping bolt 11.

It will be understood that the tubes 1 and 5 will be secured in position on the patient by means of the belts and'will be telescopically -adjusted as to length to suit the stature of such patient. In order to accommodate vertical adjustment of the. arm from the shoulder joint, the upper end of the tube 5 is provided with a toothed rosette 12, which meshes with a similar rosette '13 formedA on an end of an upper arm support' tube 14, the angular adjustments between the two tubes ,to accommodate the position of theupper arm being lsecured by the cooperation of the toothed rosettes 1'2-13 .and

a clamp bolt and wing nut16, Vas will be readily understood.

-The upper arm tubularsupport 14 issplit for some distance adjacent its free end as at 17, and said end is formed with an enlarged por-tion 18 'having a stop tooth 219 for a purpose whichwill hereinafter appear, and'is also formed with a pair otearsj 20 on opposite sides ofthe split 'portion 17; of the tube,.said ears being engaged by a clamp bolt 21. The end of the, tube may thusbe contracted to apply clamping action on the end of a threaded tractor shaft 22 loosely telesc'oping Within the vtube 14,v To maintain the threaded ytractor shaft 22 against rotation when` it isdesired to'ehange its tractional adjustment, said shaft is "formed witha longitudinal slot 23,'engaged with an internal pin 241 carried by a frosetteu25 equipped with teeth 26 for cooperation with .the ,tooth v1930i? the tube 14 in preventing rotation of the shaft, the shaft being f eX- l tractor shaft.

tended or withdrawn by means of a threaded wing nut 27 on said shaft and in abutment with the face of the rosette 25. Under normal conditions after the shaft has been eX- tended to the desired point, the clampbolt.

In order to sustain the 'forearm of the patient, the end of the shaft 22 is formed in the-shape of a toothed rosette28 to cooper-` ate with a similar-'toothed rosette 29 carried by theend'ofa tubular forearm shelf sup` port30. The rosettes '2S-29 are pivotallyy mounted on a threaded .clamp bolt Elprovided with al suitable wing nut 32 for clamping. the rosettes in the desired position of. ad-y i' iistment.

Shelf members 8S and 34 are provided for the upper and lower arms of the patient, re-

l spectively, and are of suitable contour to properly receive the average arm which is taped or otherwise secured thereto, and each shelf is adjustable longitudinally androta-` tively on its respective supporting tubes V14 and 30. j Each shelf is held Vin any desired position of adjustment on its support by means of split brackets 35 and. 36, respectively, equipped` with clamping b olts 37and 38. In this connection it will benoted that each of the shelves is pivotally mounted on its clamp bracket, said pivotsbeing adju-stable and held inv any desired*positiongby means of clamp bolts 39 and 40. y

,j The outer end of the forearm shelf terminates in a flat portion 41 formed with a squared central V opening forthe `,reception of the squared shank of a clamp bolt 42 having a wing nut 43 whichis adapted to detachably clamp in position ajskeletongrip:p-or1 tion 44. The hand of the patient is passed through the openingvin the vskeleton grip and the fingers are securedin any'suitable manner to t-he grip proper. In-this conne'cfv the shelf.

tion it is to be noted that the grip is bifur-Y cated as at 45 so that it may beplaced in operative position as regards the bolt 43 withoutv entirely jun'screwing the boltj from When the forearm j is vsecured with the palm down or when it isfdesired to position the wrist in any special manner, such as the A cock-up or Bonds position, a gripsupport is employed comprising a plate member '46 formed with an adjusting slot V47 and a palm plate 48,v the'- latter being hingedasjat 49 to the palm plate. l The angularhadjustj ment for.' the hand isi secured by'means off a link 50 pivoted at its opposite en ds to the palm plate 48 and to aisli'de plate 51 formed with a Slot 52 for adjustable engagement lby the arrows'iii Figure 8. In order to provide means whereby a finger grip portion 53. may be adjusted angularly and in the same plane as the wrist, it is secured in position to the palm plate by means of a slotted portion 54 throughwhich a clampA bolt 55 passes, said bolt also projecting through an opening in the palm plate. Itwill .be evi'- dent that the length Vof the-handL-support may be adjusted to suit the patient by means of the slots 47 and 54. L', i v Y,

, V'hen it is desired -to apply adhesiveV traction to the upper arm, an Lfshaped hitch vsupport 56` is employed, vhaving at one of its ends a rosette `57 which is bifurcated as at 5S forreception 'ofthe bolt 31. The. rosette is- .Y formed Yon its opposite'ilaees.with a plurality of teeth 59 for enmeshing with the teeth of the rosettes clamp bolt 61, it-being: apparentthat the frame may be rotated aroundthe bolt and slid longitudinally as desired, and that said frame forms a securing point for an adhesive traction member or band 62 secured toj theiipper arm of the patient, traction being obtained by operation of the wing nut A27 to extend the shaft 22. v

If the fracture occurs adj acentthe elbdii7 jointand it is impossible or' undesirable to apply adhesive tractionV to the, upper arm, the forearm may be turned at right angles to the upper arm and a pulling` tractor meniber 63 slipped on the tube 30,'said member being of suitable contour to press against the forearm (see Figure'l), and having` a finger or stop member V64l in abutment with the rosette 29 to resist rotation of themember beyond a certain point. lilith this afttacliment it will be apparent that upon rotation of the wing nut 27 toeXtend-'the shaft 22, the member :through pressing on the when this adjustmentf is ldesired th'ejclampr 21 is loosened and the rosette 251 disengaged from the tooth 19, and then the entire fore'- arm assembly bodilyrotated with tlifef tractor shaft as its axis until the desiredadjustment is secured, when the rosette is again 'engaged with theitooth 19. Theparts are thus'locked against rotation in eitherl direction 'by the c "cooperation t"of the tooth 19, the! rosette 25 and the slot and pin connection 23 and 24 between said rosette and the tractor shaft 22.

Under some circumstances it is desirable.

to employ the splint with a plaster cast, and in order to supply means whereby the splint may oe incorporated in the cast, the telescopic tubes l and 5 are removed and a short tube 6st equipped at one end with a rosette for cooperation with the upper arm suport tube rosette 18 is substituted. The end of the tube 64 is encircled by a split clamping membei` 66 having a clamping bolt and wing nut 6l and carried by a plate 68, which in turn is embedded in the cast 69. The tube 64 is thus vertically adjustableto accommodate the stature of the patient and the other parts ofthe device operate in all respects as above described.

From the above description it will be ap parent that I have produced a device of the character described which possesses all the features of advantage set forth as desirable; and while I have described and claimed the preferred embodiment of the same, I reserve the right to make all changes properly falling within the spirit and scope of the appended claims.

I claim 1. An arm splint comprising a main support for securement to the body of a patient, an upper arm support carried by the main support and adjustable to swing horizontally and vertically with respect to said main support, avtractor member longitudinally and rotatably adjustable around an axis coinciding with the axis of said upper arm support, a forearm support pivotally adjustable on the tractor member, shelves rotatively and longitudinally adjustable on the upper and forearm supports respectively, and a handgri 2l.D An arm splint comprising body belts, a telescopic main support secured to said body belts, an upper arm support carried by the main Support-and adjustable to swing horizontally and vertically with respect to said main support, a tractor longitudinally and rotatably adjustable around an axis coinciding with the axis of said upperarm support, a forearm support rpivotally adjustable on the tractor member, shelves rota't-ively and longitudinally adjustable on the upper and forearm supports respectively, a hand-grip, and an adhesive hitch support detachably carried at the pivotal point between the tractor member and the forearm support.

3. An arm splint comprising a main support for secur-ement to the body of a patient,

an upper arm vsupport carried by the main support and adjustable to swing horizontally and vertically with respect to said main support, a tractor member longitudinally and rotatably adjustable around an axis coinciding with the axis of said upper arm support, a

forearm support pivotally adjustable on the tractor member, shelves rotatably and longitudinally adjustable on the upper and forearm supports respectively, a hand-grip, and a tractor plate detachably carried by said forearm support.

4. -An arm splint comprising a main support for securement to the body of a patient, a tubular upper arm support carried by the main support and adjustable to swing horizontally and vertically with respect to said main support, a tractor shaft adapted to telescope within said arm support, connections between said tractor shaft and arm support whereby said shaft may be adjusted longitudinally of the upper arm support or rotated around an axis coinciding with the axis of said support, a forearm support pivotally carried by said tractor shaft, and a hand-grip.

' 5. An arm splint comprising a main support for securement to the body of a patient, a tubular upper arm support carried by the main support and adjustable to swing horipivotally carried by said tractor shaft, and a hand-grip.

6. In combination in an arm splint of upper and lower arm supports, toothed rosettes carried by the adjacent ends of said supports, a third rosette having teeth on its opposite faces interposed between said firstnamed rosettes, and a traction hitch member carried by said third rosette.

7. An arm splint comprising a main support adapted to be secured to thebody of a patient, an upper arm support carried by said main support, a forearm support pivotally secured to one end of said upper arm support for angular adjustment and capable of bodily rotating around the longitudinal axis of the upper arm support as the center of rotation.

8. An arm splint comprising a main support adapted to be secured to the body of a patient, an upper arm support carried by said main support a forearm support longitudinally adjustable of and pivoted to said upper arm support for angular adjustment and capable of bodily rotating around the longitudinalaxis of the upper arm support as the center of rotation.

In witness whereof I hereunto affix my signature.

' JOHN R. SIEBRANDT. 

